SUPPLEMENTAL OIL AND GAS INFORMATION (UNAUDITED) - Standardized Measure (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Extractive Industries [Abstract]
Future cash inflows	$ 60,908	$ 22,385	$ 30,302
Future production costs	(18,241)	(10,784)	(10,039)
Future development costs(1)	(2,449)	(1,612)	(2,006)
Future income tax expenses	(8,535)	(2,176)	(4,043)
Future net cash flows	31,683	7,813	14,214
10% annual discount for estimated timing of cash flows	(18,399)	(4,751)	(8,353)
Standardized measure of discounted future net cash flows	13,284	3,062	5,861	$ 6,483
Abandonment costs	$ 390	$ 224	$ 213